Mobile phone operators wants to set up towers with consent of Municipality and Resident of Housing society ; but the move has been delayed following a opposition from 5 members ?

Mobile phone operators  wants to  set up towers with consent of Municipality and Resident of Housing society ; but the move has been delayed following a opposition from 5 members ?

 The society had call Extra EGM for installation of  Mobile Tower and out of 23 Votes 18 were in favour and 5 were against and Now  these 5 are  challenging the consent,. can they do so/ if Yes what is the remedy available to them ? which will be the appropriate forum? All the Housing society decesion were taken by majority earlier, can these be challenged, pl give sutiable answer as  Socity will take legal permission from Mumbai Municipal Corporation for  towers to be put up by mobile telephone operators

Thanx N Regards